2152021054 has 48 divisors (see below), whose sum is σ = 3588088320. Its totient is φ = 964338480.

The previous prime is 2152021051. The next prime is 2152021103. The reversal of 2152021054 is 4501202512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152021051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2601789 + ... + 2602615.

It is an arithmetic number, because the mean of its divisors is an integer number (74751840).

Almost surely, 2^2152021054 is an apocalyptic number.

2152021054 is a deficient number, since it is larger than the sum of its proper divisors (1436067266).

2152021054 is a wasteful number, since it uses less digits than its factorization.

2152021054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2152021054 is about 46389.8809440162. The cubic root of 2152021054 is about 1291.0671725271.

Adding to 2152021054 its reverse (4501202512), we get a palindrome (6653223566).

The spelling of 2152021054 in words is "two billion, one hundred fifty-two million, twenty-one thousand, fifty-four".